VDTY.L vs. CU71.L

Last updated Apr 2, 2026

Compare and contrast key facts about Vanguard USD Treasury Bond UCITS ETF (VDTY.L) and iShares USD Treasury Bond 3-7yr UCITS ETF (Acc) (CU71.L).

VDTY.L and CU71.L are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. VDTY.L is a passively managed fund by Vanguard that tracks the performance of the Bloomberg US Treasury Float Adjusted Index. It was launched on Mar 4, 2025. CU71.L is a passively managed fund by iShares that tracks the performance of the Bloomberg US Government TR USD. It was launched on Jun 3, 2009. Both VDTY.L and CU71.L are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

VDTY.L vs. CU71.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard USD Treasury Bond UCITS ETF (VDTY.L) and iShares USD Treasury Bond 3-7yr UCITS ETF (Acc) (CU71.L). The values are adjusted to include any dividend payments, if applicable.

VDTY.L vs. CU71.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VDTY.L Vanguard USD Treasury Bond UCITS ETF	-0.16%	6.26%	1.10%	3.77%	-12.32%	-2.40%	7.68%	7.08%	0.80%	2.32%
CU71.L iShares USD Treasury Bond 3-7yr UCITS ETF (Acc)	-0.16%	7.47%	2.04%	3.77%	-9.39%	-2.00%	6.49%	6.88%	0.97%	1.02%

Different Trading Currencies

VDTY.L is traded in USD, while CU71.L is traded in GBp. To make them comparable, the CU71.L values have been converted to USD using the latest available exchange rates.

Returns By Period

As of year-to-date, both investments have demonstrated similar returns, with VDTY.L at -0.16% and CU71.L at -0.16%. Over the past 10 years, VDTY.L has underperformed CU71.L with an annualized return of 0.99%, while CU71.L has yielded a comparatively higher 1.40% annualized return.

VDTY.L

• 1D: 0.14%
• 1M: -1.20%
• YTD: -0.16%
• 6M: 0.80%
• 1Y: 3.03%
• 3Y*: 2.74%
• 5Y*: -0.18%
• 10Y*: 0.99%

CU71.L

• 1D: -0.07%
• 1M: -1.34%
• YTD: -0.16%
• 6M: 0.96%
• 1Y: 3.84%
• 3Y*: 3.80%
• 5Y*: 0.59%
• 10Y*: 1.40%

*Multi-year figures are annualized to reflect compound growth (CAGR)

VDTY.L vs. CU71.L - Expense Ratio Comparison

VDTY.L has a 0.05% expense ratio, which is lower than CU71.L's 0.07% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

CU71.L

iShares USD Treasury Bond 3-7yr UCITS ETF (Acc)

VDTY.L

Vanguard USD Treasury Bond UCITS ETF

Return for Risk

VDTY.L vs. CU71.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

VDTY.L

VDTY.L Risk / Return Rank: 31
VDTY.L Sharpe Ratio Rank: 34
VDTY.L Sortino Ratio Rank: 33
VDTY.L Omega Ratio Rank: 29
VDTY.L Calmar Ratio Rank: 31
VDTY.L Martin Ratio Rank: 26

CU71.L

CU71.L Risk / Return Rank: 14
CU71.L Sharpe Ratio Rank: 14
CU71.L Sortino Ratio Rank: 13
CU71.L Omega Ratio Rank: 12
CU71.L Calmar Ratio Rank: 16
CU71.L Martin Ratio Rank: 15

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

VDTY.L vs. CU71.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard USD Treasury Bond UCITS ETF (VDTY.L) and iShares USD Treasury Bond 3-7yr UCITS ETF (Acc) (CU71.L). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	VDTY.L	CU71.L	Difference
Sharpe ratio Return per unit of total volatility	0.72	0.76	-0.04
Sortino ratio Return per unit of downside risk	1.04	1.15	-0.11
Omega ratio Gain probability vs. loss probability	1.13	1.13	0.00
Calmar ratio Return relative to maximum drawdown	0.97	1.66	-0.69
Martin ratio Return relative to average drawdown	2.51	5.42	-2.91
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VDTY.L vs. CU71.L - Sharpe Ratio Comparison

The current VDTY.L Sharpe Ratio is 0.72, which is comparable to the CU71.L Sharpe Ratio of 0.76. The chart below compares the historical Sharpe Ratios of VDTY.L and CU71.L, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	VDTY.L	CU71.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.72	0.76	-0.04
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.03	0.09	-0.12
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.20	0.23	-0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.20	0.26	-0.06

Correlation

The correlation between VDTY.L and CU71.L is 0.53, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

VDTY.L vs. CU71.L - Dividend Comparison

VDTY.L's dividend yield for the trailing twelve months is around 4.23%, while CU71.L has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
VDTY.L Vanguard USD Treasury Bond UCITS ETF	4.23%	4.29%	4.31%	3.40%	2.09%	1.21%	1.54%	2.34%	2.33%	1.57%	0.99%
CU71.L iShares USD Treasury Bond 3-7yr UCITS ETF (Acc)	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

VDTY.L vs. CU71.L - Drawdown Comparison

The maximum VDTY.L drawdown since its inception was -18.99%, which is greater than CU71.L's maximum drawdown of -14.89%. Use the drawdown chart below to compare losses from any high point for VDTY.L and CU71.L.

Drawdown Indicators

	VDTY.L	CU71.L	Difference
Max Drawdown Largest peak-to-trough decline	-18.99%	-20.50%	+1.51%
Max Drawdown (1Y) Largest decline over 1 year	-3.23%	-6.49%	+3.26%
Max Drawdown (5Y) Largest decline over 5 years	-16.60%	-15.69%	-0.91%
Max Drawdown (10Y) Largest decline over 10 years	-18.99%	-20.50%	+1.51%
Current Drawdown Current decline from peak	-6.69%	-12.15%	+5.46%
Average Drawdown Average peak-to-trough decline	-6.61%	-10.07%	+3.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.25%	3.67%	-2.42%

Volatility

VDTY.L vs. CU71.L - Volatility Comparison

The current volatility for Vanguard USD Treasury Bond UCITS ETF (VDTY.L) is 1.26%, while iShares USD Treasury Bond 3-7yr UCITS ETF (Acc) (CU71.L) has a volatility of 1.72%. This indicates that VDTY.L experiences smaller price fluctuations and is considered to be less risky than CU71.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VDTY.L	CU71.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.26%	1.72%	-0.46%
Volatility (6M) Calculated over the trailing 6-month period	2.27%	3.23%	-0.96%
Volatility (1Y) Calculated over the trailing 1-year period	4.20%	5.07%	-0.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.52%	6.41%	-0.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.85%	6.07%	-1.22%